20940666

素因数分解:

$2^1\times 3^1\times {\mathrm{353}}^1\times {\mathrm{9887}}^1$

素因数の和:10245

約数の個数: 16

約数和(自身を含む): 42004224

約数和(自身を除く): 21063558

約数列:

[1, 2, 3, 6, 353, 706, 1059, 2118, 9887, 19774, 29661, 59322, 3490111, 6980222, 10470333, 20940666]

約数ペア:

[(1, 20940666), (2, 10470333), (3, 6980222), (6, 3490111), (353, 59322), (706, 29661), (1059, 19774), (2118, 9887)]